Android

1. Create an XML file: tween_anim.xml In the res/anim directory. [Html]Android: fromalphi = "0.2"Android: toAlpha = "1.0"Android: duration= "3000"Android: repeatMode = "reverse"Android: repeatCount = "10"/>Android: fromXScale = "0.2"Android:

During the development process, we often need to debug the execution path of the program. For example, if we want to know the call sequence of an Activity's lifecycle method, we may write the following code:Java code1 ......2. public void onResume ()

Previous: http://www.bkjia.com/kf/201204/127348.htmlView layersIn all versions of Android, views have the ability to draw to the off-screen buffer, including using the view rendering cache or Canvas. saveLayer (). the off-screen buffer, or layer,

When developing some system applications, we can use the Android clipboard function, such as copying text to the clipboard or copying data from the clipboard. It is easy to use and the system provides us with convenient interfaces, as shown below:1 /

A module for data transmission is being developed recently. After reading the relevant documents and reading the Android official documents in detail, this module summarizes the usage of the bluetooth module in Android. 1. Use the response

Status List StateListDrawable: A drawn object defined in XML. It depends on the object status and uses different images to represent the same image. For example, a Button can have one of several different States (such as pressing, focusing, or none).

Preface:I haven't updated this series for a long time... Because, apart from charts, there is a database. After debugging the Ormlite database for more than a week, several serious bugs were found in the latest version (orm 4.3.3) (for example, the

[Java] final String INITIALIZED = "initialized ";SharedPreferences myPrefs = getPreferences (MODE_PRIVATE ); Boolean hasPreferences = myPrefs. getBoolean (INITIALIZED, false );If (hasPreferences ){Log. v ("Preferences", "We 've been called brefore ")

Handler is required when we are dealing with some long-time events, such as reading network or database data, sometimes, in order not to affect the smoothness of user operations on applications, we need to open one more thread to differentiate UI

When it comes to inertia rotation, I think of wheel Collider, which simulates the rotation of cars, including wheels. What I want is the first speed of an object, when an object is blocked by a variety of forces, the rotation speed of our object

I went to the movie yesterday. The Titanic, after reading it, I couldn't say anything in my heart ~~~~.Haha ~~~ I haven't written a blog for a few days. I have learned 3 Dmax for two days over the past few days. Because bip and model are downloaded

Create a MainActivity. java main class Xml Code1. 2. 3. android: layout_width = "fill_parent"4. android: layout_height = "fill_parent"5. android: orientation = "vertical">6. 7. android: id = "@ + id/radiobutton_textview"8. android: layout_width =

Convert Drawable to Bitmap [Java] public static Bitmap drawableToBitmap (Drawable drawable ){// Obtain the length and width of drawableInt w = drawable. getIntrinsicWidth ();Int h = drawable. getIntrinsicHeight (); // Obtain the drawable color

Code core introduction: The WifiManager class manages the Wi-Fi function of devices, including enabling and disabling the Wi-Fi switch and obtaining IP addresses. Earlier Android versions even support IP Address Settings. Here, we will only

Some anonymous internal classes and their callback functions are often used in Android development. For example, when we set a listener for a Button, we usually implement the OnCLickListener interface and override the Onclick () method, this is the

The current helloworld. c source file is as follows: # Include Int main (){Printf ("Hello world! \ N ");}How to compile and execute it on Android? This is the goal of this article. Principle(Skip this section if you only want to understand how to

For convenience, Roboguice provides "Standard injection" support for common Android objects or services. For example, you do not need to use (SensorManager) getSystemService (SENSOR_SERVICE) to obtain the SensorManger instance, but directly use the @

Today we are talking about the toolbar at the top and bottom of the android screen, so that we can implement many functions on the same interface, so that our users can use it better, as for what functions are available above, it depends on how we

Syntax (SYNATX ): Android: alwaysRetainTaskState = ["true" | "false"]Android: clearTaskOnLaunch = ["true" | "false"]Android: configChanges = ["mcc", "mnc", "locale ","Touchscreen", "keyboard", "keyboardHidden ","Navigation", "screenLayout",

After learning about the Service, I will not talk about some of the common online services. I would like to say something that is easy to misunderstand. 1. are services created in new processes? Actually not, I wrote in the Dev Guide:Caution: A